laakness

iTrader: (12)

I had my timing belt/balance belt and all pullies/tensioner replaced a couple months ago. The alternator was also replaced.

Ever since a week after the install there is a high pitched "zzzzzzzz" sound that increases and decreases as the RPM's do.

We tried a different serpentine belt and the sound is still there. When we changed the belts we did notice the water pump had a spot of dusty/dried anti-freeze which must have leaked out.

I've never had any drips of fluid under my car though and the belt is always dry when I check it after driving.

Any suggestions on what to try to help narrow this down would be much appreciated.

http://video.google.com/videoplay?do...69092108818208 - turn down your sub if you have one while watching.

Thanks

EDIT - The sound is always the same...it hasn't gotten worse...even after multiple 4th gear pulls for my TTP flash. It's just annoying as hell.

bmguser

just a guess but have you tried using (i forget what its called) something like a stethescope to see if you can point the origin of the sound?

darkstar6069

iTrader: (28)

I had the same thing and it was acutally just a rusted gear that was squeaking but who knows

TTP Engineering

iTrader: (465)

It appears your Tbelt tensioner is overtightened and out of range of where the autotensioner can do anything.

laakness

iTrader: (12)

Thanks Scott. I'll talk with Nick and see if he can adjust that for me.

laakness

iTrader: (12)

What are the negative ramifications of driving like that?

TTP Engineering

iTrader: (465)

Wearing out your oil pump as it is yanking up on the sproket with too much force.

bolsen

iTrader: (2)

Tension... or perhaps an out of aligned pulley.

laakness

iTrader: (12)

Thanks guys, that helps a lot. I'll be having it looked at/adjusted soon.

laakness

iTrader: (12)

Nice work TTP, you nailed it from half way across the country We loosened the timing belt some and the noise is almost completely gone. I'm ok with a little noise, most can't hear it since they aren't used to listening for it.

Vigman

Not sure but I also heard like a shaking noise on post accel. Any screwed screw vibrating?

laakness

iTrader: (12)

Probably my engine dampner or the solid front motor mount causing vibration.